<template>
  <div class="app-container">
    <!--&lt;!&ndash;查询表单&ndash;&gt;-->
    <!--<div class="search-div">-->
    <!--  <el-form label-width="70px" size="small">-->
    <!--    <el-row>-->
    <!--      <el-col :span="24">-->
    <!--        <el-form-item label="角色名称">-->
    <!--          <el-input v-model="searchObj.roleName" style="width: 100%" placeholder="角色名称" />-->
    <!--        </el-form-item>-->
    <!--      </el-col>-->
    <!--    </el-row>-->
    <!--    <el-row style="display:flex">-->
    <!--      <el-button type="primary" icon="el-icon-search" size="mini" @click="fetchData()">搜索</el-button>-->
    <!--      <el-button icon="el-icon-refresh" size="mini" @click="resetData">重置</el-button>-->
    <!--    </el-row>-->
    <!--  </el-form>-->
    <!--</div>-->

    <!-- 工具条 -->
    <div class="tools-div">
      <el-button class="btn-add" size="mini" @click="batchDeleteRole()">批量删除</el-button>
      <el-button type="success" icon="el-icon-plus" size="mini" @click="add">添 加</el-button>
    </div>

    <!-- 弹出框 -->
    <el-dialog :title="dialogTitle" :visible.sync="dialogVisible" width="40%">
      <el-form ref="dataForm" :model="sysRole" label-width="150px" size="small" style="padding-right: 40px;">
        <el-form-item label="角色名称">
          <el-input v-model="sysRole.roleName" placeholder="请输入角色名称" clearable />
        </el-form-item>
        <el-form-item label="角色编码">
          <el-input v-model="sysRole.roleCode" placeholder="请输入角色编码" clearable />
        </el-form-item>
        <el-form-item label="角色描述">
          <el-input
            v-model="sysRole.description"
            type="textarea"
            :rows="2"
            placeholder="请输入角色描述"
          />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button size="small" icon="el-icon-refresh-right" @click="dialogVisible = false">取 消</el-button>
        <el-button type="primary" icon="el-icon-check" size="small" @click="saveOrUpdate()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 表格 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%;margin-top: 10px;"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" />
      <el-table-column
        type="index"
        label="序号"
        width="70"
      />
      <el-table-column prop="roleName" label="角色名称" />
      <el-table-column prop="roleCode" label="角色编码" />
      <el-table-column prop="createTime" label="创建时间" width="160" />
      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <el-button type="warning" icon="el-icon-baseball" size="mini" title="分配权限" @click="showAssignAuth(scope.row)" />
          <el-button type="primary" icon="el-icon-edit" size="mini" title="修改" @click="edit(scope.row.id)" />
          <el-button type="danger" icon="el-icon-delete" size="mini" title="删除" @click="deleteRole(scope.row.id)" />
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页组件 -->
    <el-pagination
      :current-page.sync="current"
      :total="total"
      :page-size="pageSize"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="fetchData"
    />
  </div>
</template>

<script>
import api from '@/api/system/role/role'

const defaultForm = {
  id: '',
  roleName: '',
  roleCode: '',
  description: ''
}

export default {
  name: 'Role',
  // 定义数据模型
  data() {
    return {
      listLoading: true, // 数据是否正在加载
      list: [], // 角色列表
      total: 0, // 总记录数
      current: 1, // 页码
      pageSize: 5, // 每页记录数
      searchObj: {}, // 查询条件

      dialogVisible: false,
      dialogTitle: '',
      sysRole: defaultForm,
      saveBtnDisabled: false,

      multipleSelection: []// 批量删除选中的记录列表
    }
  },
  // 页面渲染之前获取数据
  created() {
    this.fetchData()
  },
  // 定义方法
  methods: {
    /**
     * 跳转到分配菜单权限
     *
     * @param row
     */
    showAssignAuth(row) {
      this.$router.push('/system/assignAuth?id=' + row.id + '&roleName=' + row.roleName)
    },
    /**
     * 弹出添加的表单
     */
    add() {
      this.dialogTitle = '新建角色'
      this.dialogVisible = true
      this.sysRole = {}
    },

    /**
     * 弹出编辑的表单
     *
     * @param id
     */
    edit(id) {
      this.dialogTitle = '编辑角色'
      this.dialogVisible = true
      api.getRoleById(id).then(response => {
        this.sysRole = response.data
      })
    },

    /**
     * 发送添加或更新请求
     */
    saveOrUpdate() {
      if (!this.sysRole.id) {
        this.addRole()
      } else {
        this.updateRole()
      }
    },

    /**
     * 创建角色
     *
     * @param sysRoleAddRequest
     */
    addRole() {
      api.addRole(this.sysRole).then(response => {
        this.$message.success(response.message || '添加成功')
        this.dialogVisible = false
        this.fetchData(this.current)
      })
    },

    /**
     * 删除角色
     *
     * @param id
     */
    deleteRole(id) {
      this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => { // promise
        // 点击确定，远程调用ajax
        // TODO 删除最后一个有bug
        return api.deleteRole({ id })
      }).then((response) => {
        this.fetchData(this.current)
        this.$message.success(response.message || '删除成功')
      }).catch(() => {}).catch(() => {
        this.$message.info('取消删除')
      })
    },

    // 当多选选项发生变化的时候调用
    handleSelectionChange(selection) {
      console.log(selection)
      this.multipleSelection = selection
    },

    /**
     * 批量删除
     */
    batchDeleteRole() {
      if (this.multipleSelection.length === 0) {
        this.$message.warning('请选择要删除的记录！')
        return
      }
      this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        // 点击确定，远程调用ajax
        // 遍历selection，将id取出放入id列表
        const idList = []
        this.multipleSelection.forEach(item => {
          idList.push(item.id)
        })
        // 调用api
        return api.batchDeleteRole(idList)
      }).then((response) => {
        // TODO 是否要跳到当前页
        this.fetchData()
        this.$message.success(response.message)
      }).catch(error => {
        if (error === 'cancel') {
          this.$message.info('取消删除')
        }
      })
    },

    /**
     * 更新角色
     *
     * @param sysRoleUpdateRequest
     */
    updateRole(sysRoleUpdateRequest) {
      api.updateRole(this.sysRole).then(response => {
        this.$message.success(response.message || '修改成功')
        this.dialogVisible = false
        this.fetchData(this.current)
      })
    },

    /**
     * 重置查询表单
     */
    resetData() {
      this.searchObj = {}
      this.fetchData()
    },

    /**
     * 分页获取角色列表
     *
     * @param pageNum
     */
    fetchData(pageNum = 1) {
      this.current = pageNum
      // 调用api
      api.listRoleByPage(this.current, this.pageSize, this.searchObj).then(response => {
        this.listLoading = false
        this.list = response.data.records
        this.total = response.data.total
        this.current = response.data.current
        this.pageSize = response.data.size
      })
    }
  }
}
</script>

<style scoped>

</style>
